CN102817423B - Buffer-type suspension-type particle tuning quality damper - Google Patents
Buffer-type suspension-type particle tuning quality damper Download PDFInfo
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- CN102817423B CN102817423B CN201210332837.7A CN201210332837A CN102817423B CN 102817423 B CN102817423 B CN 102817423B CN 201210332837 A CN201210332837 A CN 201210332837A CN 102817423 B CN102817423 B CN 102817423B
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Abstract
The invention relates to a buffer-type suspension-type particle tuning quality damper. The damper comprises a damping cavity, particle swarms, a buffer material, a steel cable and a limiting device. The damping cavity is rectangular or cylindrical, the damping cavity can be a single one or a plurality of damping cavities can be arranged horizontally or vertically, a layer of particle swarms is laid on a single cavity, an embedded part arranged inside a structure is hinged with the damping cavity through the steel cable, and the limiting device is arranged outside the damper so as to avoid damage of the structure due to excessive vibration. Under the action of wind or/and earthquakes, the device can vibrate along multiple directions horizontally, on one hand, through the natural vibration frequency of the tuning structure, on the other hand, through rolling, sliding, friction and collision transfer of the particle swarms and kinetic energy of a dissipative structure, after the buffer material is added, the energy dissipated by the collision is increased. The buffer material is added in the damping cavity, the damping cavity is suspended by using the steel cable, the vibration attenuation effect is better than that of a device with no buffer material, and the device provides vibration attenuation effects in more directions than a suspending device with a unidirectional hinge.
Description
Technical field
The present invention relates to a kind of by cable wire and agent structure hinged, at one or more inside cavity filler particles and the buffer-type suspension particle tuned mass damper of additional cushion material, consumed energy by tuning and frictional impact, belong to civil structure (comprising highrise building, tall and slender structure and bridge construction etc.) vibration isolation field.
Background technology
Tuned mass damper (TMD) or Tuned Liquid (TLD) vibration damping control technology are changed the feature such as little, construction is simple, effectiveness in vibration suppression is remarkable with it to original structure and are extensively paid attention in recent years, and are at home and abroad applied in civil engineering.Granule damper is as a kind of novel energy-eliminating shock-absorbing control technology, have to original system change little, vibration damping bandwidth, good endurance, reliability are high, insensitive to variations in temperature, be easy to be used in the advantages such as adverse circumstances, become the study hotspot of civil engineering researcher gradually.
The tuning quality vibration insulating system belonging to passive control device has the following disadvantages at present: first, and Tuned mass damper system need arrange expensive damper, is unfavorable for extensive use.Secondly, tuning quality system vibration damping frequency band is narrow, often the frequency tuning to it can only produce good effectiveness in vibration suppression, not good for the vibration area control effects departing from this frequency.The granule damper vibration insulating system belonging to passive control device has the following disadvantages at present: first, and the collision of particle and cavity mostly is elastic collision, and energy dissipation capacity is limited.Secondly, the particle swarm of the certain stacks as high of the many employings of conventional particles damper, significantly limit slip and the energy by collision of lower layer region particle.In addition, conventional particles damper only relies on particle own slip frictional impact often to cause frequency modulation poor effect to structure frequency modulation.Therefore, tuned mass damper and granule damper are combined, make it have complementary advantages, and carry out improvement exploitation, form the novel particle tuned mass damper that a kind of structural form is simpler, cheap, energy dissipation capacity is good, fm capacity is strong and there is great engineering significance.
Summary of the invention
Narrow in order to solve the tuning frequency band of conventional tune mass damper, the expensive problem of energy-consumption damper is set, and conventional particles damper due to the energy dissipation capacity that particle is stacking and elastic collision causes limited, the problem of tuning capability difference, the object of the invention is to propose a kind of buffer-type suspension particle tuned mass damper, this device is in conjunction with tuned mass damper and granule damper advantage separately, and improved, namely by cable wire and agent structure hinged, at one or more inside cavity filler particles and additional cushion material, form buffer-type suspension particle tuned mass damper.This damper structure is simple, energy by collision ability is good, fm capacity is strong, multidimensional control effects is good in horizontal direction.At wind or/and under geological process, particle swarm in one or more cavity can provide the effect of tuning structure vibration frequency along the direction that vibration inputs by wireline system with damper cavity, simultaneously by the friction between particle, between particle and damper cavity, collision dissipation energy, particle only arranges one deck and additional cushion material, all can increase energy dissipation capacity.The arranging of stopping means can ensure damper at superpower wind or/and under earthquake, is unlikely to the excessive and impact structure of amplitude of fluctuation and produces and destroy.
To achieve these goals, the present invention takes following technical scheme.
A kind of buffer-type suspension particle tuned mass damper of the present invention, comprise: damper cavity 1, particle swarm 2, padded coaming 3, cable wire 4 and stopping means 5, damper cavity 1 is cuboid or cylindrical structure, damper cavity 1 is one or more, multiple damper cavity 1 is that horizontal or vertical direction is arranged, each damper cavity 1 inside tiling one deck particle swarm 2, damper cavity 1 inwall is coated with padded coaming 3, cable wire 4 by built-in fitting and damper cavity 1 hinged, one or more damper cavity 1 outer setting limited location device 5, excessively structure is broken to prevent its vibration, at wind or/and under the effect such as earthquake, this device can be in the horizontal direction, vibrate along multiple directions, on the one hand by tuning structure natural frequency, on the other hand by the kinetic energy of the rolling of particle swarm 2, slip, friction, collision transfer and dissipative structure, increased the energy colliding and dissipate by padded coaming 3.
In the present invention, described particle swarm 2 is made up of several circular granulars, circular granular diameter be in the steel ball of 2mm ~ 50mm, concrete ball, glass marble or Ceramic Balls more than one.
In the present invention, particle swarm 2 is 40% ~ 80% of damper cavity 1 horizontal area at horizontal plane area occupied, and the volume of particle swarm 2 should be 5% ~ 20% of damper cavity 1 volume.
In the present invention, described padded coaming 3 to comprise in rubber, foamed plastics or expanded polyethylene foam more than one, to increase the energy that collision dissipates.
In the present invention, cable wire by the built-in fitting that arranges in structure and damper cavity hinged, make damper can in the horizontal direction, along multiple directions vibration, to resist the wind of different directions effect or/and seismic load.
In the present invention, at the outer setting stopping means of damper cavity, to prevent it at huge high wind or/and produce excessive displacement under geological process, impact structure and damaging.
The present invention adopt cable wire by the built-in fitting that arranges in agent structure and damper cavity hinged, at one or more inside cavity filler particles and additional cushion material, and stopping means is set at its exterior, form buffer-type suspension particle tuned mass damper.At wind or/and under the effect such as earthquake, this device can be in the horizontal direction, vibrate along multiple directions, on the one hand by tuning structure natural frequency, on the other hand by the kinetic energy of the rolling of particle swarm, slip, friction, collision transfer and dissipative structure, the energy that collision dissipates after adding padded coaming, especially can be increased.
Compared with prior art, advantage of the present invention is as follows:
1) particle swarm of the present invention can provide the effect of tuning structure vibration frequency along the direction that vibration inputs by wireline system with damper cavity, can at the multiple direction of vibration vibration damping of horizontal direction.
2) the present invention adopts the method for additional cushion material, and increase particle and damper cavity collide the energy consumed, and improve its energy efficiency.
3) structural form of the present invention is simple, the particle of reliable durable cheapness is adopted to provide carrier as additional damping, in conjunction with the advantage of tuned mass damper and granule damper, by tuning quality and particle friction energy by collision, reduce the cost that conventional damper is set, thus applicability and economy stronger.
Accompanying drawing explanation
Fig. 1 is the positive elevational schematic view of buffer-type suspension particle tuned mass damper of the present invention;
Fig. 2 is the floor map of buffer-type suspension particle tuned mass damper of the present invention;
Number in the figure: 1---damper cavity, 2---particle swarm; 3---padded coaming; 4---cable wire; 5---stopping means.
Detailed description of the invention
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, be a kind of buffer-type suspension particle tuned mass damper embodiment of the present invention, it mainly comprises damper cavity 1, the particle swarm of the one deck that tiles in cavity 2, padded coaming 3, cable wire 4 and spring stopper 5.
Damper cavity 1 is by the cuboid empty van of the thick Plate Welding of 5mm ~ 10mm, by cable wire 4, damper cavity 1 is hinged with the built-in fitting in structure, damper is suspended to bean column node, flooring mechanical floor or tall and slender structure, the half space place of such as TV transmission tower.Particle swarm 2 tiles one deck in damper cavity 1, and the size of its size and damper cavity 1 and the length of cable wire 4 should be tried to achieve according to correlation theory according to the frequency of structure.Particle swarm 2 should be 40% ~ 80% of damper cavity 1 horizontal area at horizontal plane area occupied, and the volume of particle swarm 2 should be 5% ~ 20% of damper cavity 1 volume.Damper cavity 1 inwall sticks the thick rubber of padded coaming 3(such as 5mm or foamed plastics etc.).
Claims (4)
1. a buffer-type suspension particle tuned mass damper, comprise: damper cavity (1), particle swarm (2), padded coaming (3), cable wire (4) and stopping means (5), it is characterized in that: damper cavity (1) is cuboid or cylindrical structure, damper cavity (1) is for one or more, multiple damper cavity (1) is arranged for horizontal or vertical direction, each damper cavity (1) inside tiling one deck particle swarm (2), damper cavity (1) inwall is coated with padded coaming (3), cable wire (4) by built-in fitting and damper cavity (1) hinged, one or more damper cavity (1) outer setting limited location device (5), excessively structure is broken to prevent its vibration, at wind or/and under geological process, this device can be in the horizontal direction, vibrate along multiple directions, on the one hand by tuning structure natural frequency, on the other hand by the kinetic energy of the rolling of particle swarm (2), slip, friction, collision transfer and dissipative structure, increased the energy colliding and dissipate by padded coaming (3).
2. buffer-type suspension particle tuned mass damper according to claim 1, it is characterized in that: described particle swarm (2) is made up of several circular granulars, in the steel ball of circular granular to be diameter be 2mm ~ 50mm, concrete ball, glass marble or Ceramic Balls more than one.
3. buffer-type suspension particle tuned mass damper according to claim 1, it is characterized in that: particle swarm (2) is 40% ~ 80% of damper cavity (1) horizontal area at horizontal plane area occupied, and particle swarm (2) volume is 5% ~ 20% of damper cavity (1) volume.
4. buffer-type suspension particle tuned mass damper according to claim 1, is characterized in that: described padded coaming (3) to comprise in rubber, foamed plastics or expanded polyethylene foam more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210332837.7A CN102817423B (en) | 2012-09-11 | 2012-09-11 | Buffer-type suspension-type particle tuning quality damper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210332837.7A CN102817423B (en) | 2012-09-11 | 2012-09-11 | Buffer-type suspension-type particle tuning quality damper |
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| Publication Number | Publication Date |
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| CN102817423A CN102817423A (en) | 2012-12-12 |
| CN102817423B true CN102817423B (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210332837.7A Expired - Fee Related CN102817423B (en) | 2012-09-11 | 2012-09-11 | Buffer-type suspension-type particle tuning quality damper |
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Families Citing this family (18)
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| CN103016609A (en) * | 2012-12-27 | 2013-04-03 | 长安大学 | Three-dimensional swing ball type tuned mass damper |
| CN103114658A (en) * | 2013-02-05 | 2013-05-22 | 北京工业大学 | Ball-shaped cabin tuning type particle camper |
| CN103498884B (en) * | 2013-10-08 | 2015-12-23 | 同济大学 | Suspension type multi-unit impact damper |
| CN103485438B (en) * | 2013-10-08 | 2015-10-28 | 同济大学 | Semi-active control collision damper |
| CN103603439B (en) * | 2013-11-22 | 2016-01-20 | 同济大学 | A kind of impact damper |
| CN104314191B (en) * | 2014-10-10 | 2016-08-31 | 同济大学 | Chain type particles-impact damper |
| CN104453004B (en) * | 2014-12-08 | 2016-08-24 | 同济大学 | A kind of mixing energy-eliminating shock-absorbing damping unit |
| CN105239692B (en) * | 2015-10-26 | 2017-07-11 | 同济大学 | A kind of non-liner track formula granule damper |
| CN106948640B (en) * | 2017-05-08 | 2023-06-23 | 山东大学 | Suspension type multidimensional multistage collision energy dissipation damper |
| CN108385509B (en) * | 2018-01-18 | 2019-06-11 | 同济大学 | Particle swarm idler wheel cooperates with tuned damper |
| CN108560523B (en) * | 2018-04-11 | 2020-06-19 | 同济大学 | Heave plate combining electromagnetic induction and particle damping |
| CN108316734B (en) * | 2018-04-21 | 2018-12-25 | 中国地震局工程力学研究所 | A kind of granulated multistage-multidirectional energy-dissipating and shock-absorbing support |
| CN108488305B (en) * | 2018-06-20 | 2020-12-18 | 上海理工大学 | Elastic collision damper with thickening fluid |
| CN108801581A (en) * | 2018-09-04 | 2018-11-13 | 中国空气动力研究与发展中心高速空气动力研究所 | Wind tunnel force measurement model vibration damping strut based on constrained damping structure |
| CN109372140A (en) * | 2018-11-19 | 2019-02-22 | 北京工业大学 | A kind of horizontal bidirectional dual tuned particle damper |
| CN114250879B (en) * | 2021-12-31 | 2023-03-31 | 同济大学 | Recycled concrete damping energy dissipation beam and preparation method thereof |
| CN114457930B (en) * | 2022-03-03 | 2022-11-25 | 湖南大学 | Self-energy-consumption pendulum type collision dual-tuning mass damper |
| CN114673757A (en) * | 2022-03-08 | 2022-06-28 | 武汉理工大学 | Modular built-in PTRMD precast concrete block and fan vibration control method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001090776A (en) * | 1999-09-27 | 2001-04-03 | Matsushita Electric Works Ltd | Sheet-like vibration damping material and vibration damping panel material |
| CN101597925B (en) * | 2009-06-19 | 2011-05-18 | 北京工业大学 | Built-in micro-particle type tuning and friction energy dissipation damper |
| CN102433943B (en) * | 2011-10-12 | 2013-08-21 | 北京工业大学 | Sliding cabin type multilevel damper equipped with power consumption and tuning particles |
| CN102425243A (en) * | 2011-10-12 | 2012-04-25 | 北京工业大学 | Mass tuned grain damper |
| CN102444218B (en) * | 2011-10-19 | 2014-05-21 | 沈阳建筑大学 | Bidirectional multi-frequency rectangular lattice type tuned liquid damper |
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- 2012-09-11 CN CN201210332837.7A patent/CN102817423B/en not_active Expired - Fee Related
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Granted publication date: 20150218 Termination date: 20170911 |